1 files changed, 38 insertions, 0 deletions
diff --git a/js/src/tests/test262/built-ins/String/prototype/substring/S15.5.4.15_A9.js b/js/src/tests/test262/built-ins/String/prototype/substring/S15.5.4.15_A9.js
new file mode 100644
index 0000000000..4e5a3df24b
--- /dev/null
+++ b/js/src/tests/test262/built-ins/String/prototype/substring/S15.5.4.15_A9.js
@@ -0,0 +1,38 @@
+// Copyright 2009 the Sputnik authors.  All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+info: |
+    The String.prototype.substring.length property does not have the
+    attribute DontDelete
+es5id: 15.5.4.15_A9
+description: >
+    Checking if deleting the String.prototype.substring.length
+    property fails
+---*/
+
+//////////////////////////////////////////////////////////////////////////////
+//CHECK#0
+if (!(String.prototype.substring.hasOwnProperty('length'))) {
+  throw new Test262Error('#0: String.prototype.substring.hasOwnProperty(\'length\') return true. Actual: ' + String.prototype.substring.hasOwnProperty('length'));
+}
+//
+//////////////////////////////////////////////////////////////////////////////
+
+//////////////////////////////////////////////////////////////////////////////
+//CHECK#1
+if (!delete String.prototype.substring.length) {
+  throw new Test262Error('#1: delete String.prototype.substring.length return true');
+}
+//
+//////////////////////////////////////////////////////////////////////////////
+
+//////////////////////////////////////////////////////////////////////////////
+//CHECK#2
+if (String.prototype.substring.hasOwnProperty('length')) {
+  throw new Test262Error('#2: delete String.prototype.substring.length; String.prototype.substring.hasOwnProperty(\'length\') return false. Actual: ' + String.prototype.substring.hasOwnProperty('length'));
+}
+//
+//////////////////////////////////////////////////////////////////////////////
+
+reportCompare(0, 0);